Finding the Fourth Proportional to 762,532,985.16, 1,143,277,305.66 and 388,316,497.08
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Solution
The fourth proportional to 762,532,985.16, 1,143,277,305.66 and 388,316,497.08 is: 582,208,831.83
Step by Step Solution
- Step 1: Write the proportion equation
762,532,985.16 : 1,143,277,305.66 = 388,316,497.08 : x - Step 2: Convert to fraction form
762,532,985.16/1,143,277,305.66 = 388,316,497.08/x - Step 3: Cross multiply
762,532,985.16x = 1,143,277,305.66 × 388,316,497.08 - Step 4: Simplify right side
762,532,985.16x = 443,953,438,524,951,680 - Step 5: Solve for x
x = 443,953,438,524,951,680/762,532,985.16 - Step 6: Final answer
x = 582,208,831.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.